JPS58105439A - 光学フオ−カシング誤差検出装置 - Google Patents
光学フオ−カシング誤差検出装置Info
- Publication number
- JPS58105439A JPS58105439A JP57214762A JP21476282A JPS58105439A JP S58105439 A JPS58105439 A JP S58105439A JP 57214762 A JP57214762 A JP 57214762A JP 21476282 A JP21476282 A JP 21476282A JP S58105439 A JPS58105439 A JP S58105439A
- Authority
- JP
- Japan
- Prior art keywords
- detection device
- radiation
- reading
- detector
- error detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005855 radiation Effects 0.000 claims description 36
- 238000001514 detection method Methods 0.000 claims description 27
- 230000003287 optical effect Effects 0.000 claims description 21
- 201000009310 astigmatism Diseases 0.000 claims description 12
- 210000001747 pupil Anatomy 0.000 claims description 11
- 238000003384 imaging method Methods 0.000 claims 1
- 230000010287 polarization Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010034133 Pathogen resistance Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
- G11B7/0909—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only by astigmatic methods
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Automatic Focus Adjustment (AREA)
- Lenses (AREA)
- Focusing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8105579 | 1981-12-11 | ||
NL8105579A NL8105579A (nl) | 1981-12-11 | 1981-12-11 | Optisch fokusfoutdetektiestelsel. |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58105439A true JPS58105439A (ja) | 1983-06-23 |
Family
ID=19838522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57214762A Pending JPS58105439A (ja) | 1981-12-11 | 1982-12-09 | 光学フオ−カシング誤差検出装置 |
Country Status (15)
Country | Link |
---|---|
US (1) | US4464741A ( ) |
JP (1) | JPS58105439A ( ) |
AT (1) | AT375481B ( ) |
AU (1) | AU551546B2 ( ) |
BE (1) | BE895301A ( ) |
CA (1) | CA1189618A ( ) |
CH (1) | CH661375A5 ( ) |
DE (1) | DE3245075A1 ( ) |
ES (1) | ES518027A0 ( ) |
FR (1) | FR2518295B1 ( ) |
GB (1) | GB2112243B ( ) |
IT (1) | IT1191117B ( ) |
NL (1) | NL8105579A ( ) |
SE (1) | SE8207002L ( ) |
ZA (1) | ZA828250B ( ) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58141434U (ja) * | 1982-03-19 | 1983-09-22 | パイオニア株式会社 | フオ−カスエラ−検出装置 |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2122835B (en) * | 1982-06-30 | 1986-08-06 | Eastman Kodak Co | Rangefinder |
JPS59162514A (ja) * | 1983-03-08 | 1984-09-13 | Dainippon Screen Mfg Co Ltd | 画像走査記録装置における焦点調整方法 |
US4724533A (en) * | 1984-06-15 | 1988-02-09 | Matsushita Electric Industrial Co., Ltd. | Optical head |
US4742218A (en) * | 1985-03-11 | 1988-05-03 | Hitachi, Ltd. | Focus error detection apparatus utilizing focusing an front and rear sides of focal planes |
US4732485A (en) * | 1985-04-17 | 1988-03-22 | Olympus Optical Co., Ltd. | Optical surface profile measuring device |
US5189651A (en) * | 1986-05-12 | 1993-02-23 | Pioneer Electronic Corporation | Optical system in magneto-optical recording and reproducing device |
US4799210A (en) * | 1986-11-05 | 1989-01-17 | Unisys Corporation | Fiber optic read/write head for an optical disk memory system |
DE3802538A1 (de) * | 1987-01-28 | 1988-08-11 | Olympus Optical Co | Vorrichtung zum erfassen von fotomagnetischen signalen |
US4879706A (en) * | 1987-07-29 | 1989-11-07 | Laser Magnetic Storage International Company | Method and apparatus for focus and tracking in an optical disk system |
US5195081A (en) * | 1988-04-22 | 1993-03-16 | Canon Kabushiki Kaisha | Optical apparatus for effecting recording and/or reproducing of information on/from and optical information recording medium |
JPH03130940A (ja) * | 1989-05-24 | 1991-06-04 | Kyocera Corp | 光スポット制御方法および制御装置 |
US5293569A (en) * | 1990-09-13 | 1994-03-08 | Canon Kabushiki Kaisha | Magneto-optical recording/reproducing apparatus including an optical head with an optical element having a plurality of prisms |
US5216562A (en) * | 1990-09-25 | 1993-06-01 | International Business Machines Corporation | Multi-beam optical recording system and method |
JPH06282861A (ja) * | 1992-12-22 | 1994-10-07 | Philips Electron Nv | フォーカス最適化方法及び装置 |
US6064529A (en) * | 1998-07-02 | 2000-05-16 | Optiteck, Inc. | Spherical aberration correction using flying lens and method |
US6563779B1 (en) | 1999-06-16 | 2003-05-13 | Siros Technologies, Inc. | Tracking error signal generation using confocally filtered detection |
DE19930628A1 (de) * | 1999-07-02 | 2001-02-01 | Graul Renate | Topographiemeßgerät |
US6967908B2 (en) * | 2000-09-07 | 2005-11-22 | Pioneer Corporation | Optical pickup device with focus error detecting optical element and method for focus error detection |
JP5173656B2 (ja) * | 2008-07-31 | 2013-04-03 | 三洋電機株式会社 | 光ピックアップ装置 |
JP5173953B2 (ja) * | 2008-08-01 | 2013-04-03 | 三洋電機株式会社 | 光ピックアップ装置および光ディスク装置 |
JP5173659B2 (ja) * | 2008-08-01 | 2013-04-03 | 三洋電機株式会社 | 光ピックアップ装置および光ディスク装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5285801A (en) * | 1975-12-31 | 1977-07-16 | Thomson Brandt | Device for correcting focusing error of optical reproducer |
JPS52129246A (en) * | 1975-07-07 | 1977-10-29 | Philips Nv | Light reflection record carrier reader |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7216306A ( ) * | 1972-12-01 | 1974-06-05 | ||
FR2271590B1 ( ) * | 1974-01-15 | 1978-12-01 | Thomson Brandt | |
FR2311326A2 (fr) * | 1974-01-15 | 1976-12-10 | Thomson Brandt | Dispositif de focalisation et lecteur optique comportant un tel dispositif |
FR2330027A1 (fr) * | 1975-10-28 | 1977-05-27 | Thomson Brandt | Dispositif de focalisation a vergence variable et lecteur optique comportant un tel dispositif |
JPS5317705A (en) * | 1976-08-02 | 1978-02-18 | Hitachi Ltd | Automatic focusing system |
NL7703077A (nl) * | 1977-03-22 | 1978-09-26 | Philips Nv | Inrichting voor het uitlezen van een stralings- reflekterende registratiedrager. |
US4272651A (en) * | 1978-04-28 | 1981-06-09 | Matsushita Electric Industrial Co., Ltd. | Optical system having diode laser light source |
JPS5532245A (en) * | 1978-08-25 | 1980-03-06 | Matsushita Electric Ind Co Ltd | Optical recorder and reproducing device |
FR2462758A1 (fr) * | 1979-08-03 | 1981-02-13 | Thomson Csf | Dispositif optique d'acces a une piste portee par un support d'information et systeme de memoire optique comportant un tel dispositif |
-
1981
- 1981-12-11 NL NL8105579A patent/NL8105579A/nl not_active Application Discontinuation
-
1982
- 1982-03-03 US US06/354,324 patent/US4464741A/en not_active Expired - Fee Related
- 1982-11-10 ZA ZA828250A patent/ZA828250B/xx unknown
- 1982-12-06 IT IT24630/82A patent/IT1191117B/it active
- 1982-12-06 DE DE19823245075 patent/DE3245075A1/de active Granted
- 1982-12-06 FR FR8220396A patent/FR2518295B1/fr not_active Expired
- 1982-12-08 GB GB08234963A patent/GB2112243B/en not_active Expired
- 1982-12-08 CH CH7168/82A patent/CH661375A5/de not_active IP Right Cessation
- 1982-12-08 SE SE8207002A patent/SE8207002L/ not_active Application Discontinuation
- 1982-12-09 JP JP57214762A patent/JPS58105439A/ja active Pending
- 1982-12-09 AT AT0448782A patent/AT375481B/de active
- 1982-12-09 BE BE0/209696A patent/BE895301A/fr not_active IP Right Cessation
- 1982-12-09 AU AU91359/82A patent/AU551546B2/en not_active Ceased
- 1982-12-09 CA CA000417320A patent/CA1189618A/en not_active Expired
- 1982-12-09 ES ES518027A patent/ES518027A0/es active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52129246A (en) * | 1975-07-07 | 1977-10-29 | Philips Nv | Light reflection record carrier reader |
JPS5285801A (en) * | 1975-12-31 | 1977-07-16 | Thomson Brandt | Device for correcting focusing error of optical reproducer |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58141434U (ja) * | 1982-03-19 | 1983-09-22 | パイオニア株式会社 | フオ−カスエラ−検出装置 |
JPH0519850Y2 ( ) * | 1982-03-19 | 1993-05-25 |
Also Published As
Publication number | Publication date |
---|---|
ES8501914A1 (es) | 1984-12-01 |
US4464741A (en) | 1984-08-07 |
IT8224630A1 (it) | 1984-06-06 |
AU551546B2 (en) | 1986-05-01 |
NL8105579A (nl) | 1983-07-01 |
FR2518295A1 (fr) | 1983-06-17 |
CH661375A5 (de) | 1987-07-15 |
FR2518295B1 (fr) | 1988-11-18 |
DE3245075C2 ( ) | 1991-05-02 |
SE8207002L (sv) | 1983-06-12 |
BE895301A (fr) | 1983-06-09 |
ATA448782A (de) | 1983-12-15 |
ES518027A0 (es) | 1984-12-01 |
IT1191117B (it) | 1988-02-24 |
GB2112243A (en) | 1983-07-13 |
DE3245075A1 (de) | 1983-06-16 |
AU9135982A (en) | 1983-06-16 |
ZA828250B (en) | 1984-06-27 |
GB2112243B (en) | 1985-06-19 |
IT8224630A0 (it) | 1982-12-06 |
SE8207002D0 (sv) | 1982-12-08 |
AT375481B (de) | 1984-08-10 |
CA1189618A (en) | 1985-06-25 |
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